Hi Hutch. Welcome to TSF! :wave:
I would recommend that you download a program called Kill Disk. You can find it
HERE. With it you'll be able to do what is called a low level format. Typically when an operating system is being installed and asks you if you want to format it, it doesn't do a low-level format and the old information on the drive can actually cause you problems on a fresh install such as what you're doing.
The Kill Disk program is free. You'll have to create a bootable CD from the downloaded file because you'll have to boot from the CD to erase your drive. If you go to the User's Guide page, you'll find a link where you can find information on how to create the bootable CD. You'l be able to download a bootable ISO image as well, if need be.
Once you have wiped the drive, you can put your Windows CD in and start the install fresh.
Let me know how that works out for you or if you have any other questions about it.
Good day!
Mike